Toshiba laptop battery & 3.5" USB hub/caddy

[ianr]

The battery I need is a model PA3533U-1BRS and is for a Toshiba Equium 200. It looks in form like this: https://i.ebayimg.com/00/s/MTYwMFgxNjAw/z/xewAAOSwwptdTRhE/$_12.JPG -- differently named models but of exactly the same form will most likely also do.

It doesn't have to be new. Anything with at least say 30 minutes capacity when fully charged would do.

I'd also be interested in a hub or caddy, presumably powered, for a 3.5" hard drive. USB2 will do.